搜索结果: 1-12 共查到“地质学 FTIR”相关记录12条 . 查询时间(0.161 秒)
Praying Mantis as a Difuse Reflectance Device for FTIR Analysis of Geophagic Clayey Soils
Praying Mantis Difuse Reflectance Device FTIR Analysis Geophagic Clayey Soils
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2012/3/14
Praying Mantis as a Difuse Reflectance Device for FTIR Analysis of Geophagic Clayey Soils.
FTIR spectroscopic study of palygorskite: Influence of the composition of the octahedral sheet
Palygorskite FTIR spectroscopy Structural formulae Octahedral sheet
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2011/11/4
The influence of chemical composition to position and intensity of the absorption bands observed in the FTIR spectra of palygorskite has been studied by a detailed comparative study of six samples. Pa...
A Nuclear Magnetic Resonance (NMR) and Fourier-Transform Infrared (FTIR) Study of Glycine Speciation on a Cd-Rich Montmorillonite
Adsorption Amino Acids Cadmium Glycine Montmorillonite Speciation
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2011/12/6
Abstract: As a consequence of treatments with glycine solutions, glycine molecules enter the interlayer of both Ca- and Cd-rich montmorillonite. Measurements of d value suggest that at low glycine con...
Orthorhombic Jahn-Teller distortion and Si-OH in mozartite CaMn3+O[SiO3OH]: A single-crystal X-ray, FTIR, and structure modeling study
Orthorhombic Jahn-Teller distortion Si-OH CaMn3+O[SiO3OH X-ray FTIR: structure modeling study
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2012/4/6
Thestructureofmozartite,CaMn O[SiO OH],wasre?nedinspacegroup P2 2 2 fromX-raysingle-crystaldatacollectedat100K(R 2.45%, R 2.62%),300K(R 2.60%,R 2.68%),and500K(R 2.79%, R 2.81%).TheMn O octahedronshows...
An FTIR Study of Water Sorption on TMA- and TMPA-Montmorillonites
FTIR TMA-montmorillonites TMPA-montmorillonites Water Sorption
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2011/12/1
Abstract: Water inhibits sorption of uncharged organic compounds on montmorillonites saturated with small alkylammonium cations such as tetramethylammonium (TMA) and trimethylphenylammonium (TMPA). As...
FTIR Study of Competitive Water-Arene Sorption on Tetramethylammonium- and Trimethylphenylammonium-Montmorillonites
Alkylammonium Benzene Ethylbenzene Infrared spectroscopy Organoclay Sorption Water
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2011/12/1
Abstract: Montmorillonites saturated with small quaternary alkylammonium ions such as tetramethylammonium (TMA) or trimethylphenylammonium (TMPA) are excellent sorbents for aromatic pollutants. In som...
FTIR spectroscopy of lawsonite between 82 and 325 K
FTIR spectroscopy lawsonite
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2012/4/6
Lawsonite single crystals were investigated by polarized FfIR spectroscopy at wave-numbers between 8000 and 1000 cm-1 and temperatures between 82 and 325 K.This temperature range contains three lawson...
Mechanism of CO32- substitution in carbonate-fluorapatite: Evidence from FTIR spectroscopy, 13C NMR, and quantum mechanical calculations---Reply to Nathan
Mechanism CO32- substitution carbonate-fluorapatite Evidence FTIR spectroscopy 13C NMR quantum mechanical calculations---Reply Nathan
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2012/4/5
In the critical comment byNathan (1996), the author essentially claims that the samples used in our study (Regnier et al. 1994) werenot very appropriate to dem-onstrate the absence of C03P-. Furthermo...
Mechanism of CO32- substitution in carbonate-fluorapatite: Evidence from FTIR spectroscopy, 13C NMR, and quantum mechanical calculations---Discussion
Mechanism CO32- substitution carbonate-fluorapatite Evidence FTIR spectroscopy 13C NMR quantum mechanical calculations---Discussion
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2012/4/5
The carbonate substitution in apatite continues to pro-voke controversies. In a recent paper, Regnier etal. (1994) challenged the existence of the hypothetical C03P- ion in carbonate-fluorapatite (fra...
FTIR Reflectance vs. EPR Studies of Structural Iron in Kaolinites
EPR Fe Kaolinite Mid and near infrared Substitution
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2011/12/29
The substitution of Fe3+ in the kaolinite structure is studied by EPR spectrometry and by FTIR spectrometry on a large set of kaolins from different origins (sedimentary and primary ores, soil kaolins...
Chemisorption of Benzene on Cu-Montmorillonite as Characterized by FTIR and 13C MAS NMR
Benzene chemisorption 13C MAS NMR Cu-montmorillonite FTIR Poly-p-phenylene
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2011/12/1
Abstract: Sorption of benzene onto Cu-montmorillonite was characterized by Fourier transform infrared (FTIR) spectroscopy and 13C magic angle spinning nuclear magnetic resonance (MAS NMR). Under anhyd...
FTIR Study of Deuterated Montmorillonites: Structural Features Relevant to Pillared Clay Stability
Deuterated montmorillonites FITR Pillared smectites Thermal stability
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2011/12/1
Abstract: FTIR studies of six partially-deuterated montmorillonites (MS) reveal the presence of two O-D stretching bands, one between 2702–2728 cm-1 and another near 2680 cm-1. For homoionic (Li, Na, ...